2nd battery volatage??????????

[jcadams]

I have a normal car battery up front and a optima deep cycle battery in the trunk i have a 135 amp alternator in my civic. the back battery is wired parellel i think where its 1/0 wire from positive to positive and then the nagatives are just grounded to the chassis. The battery in the trunk is used to power compresors and valves for air suspension and in the future a sound system

i am getting ready to install amps to this battery, but first i threw a volt meter on it to see wat i was reading and i got 23 volts so i tried the front and had the same 23 volts. i am worried about burning amps up with this kind of power i thought i should only be reading 12 or so volts not 23. my 12 volt compresor is running fine of this power source and nothing seems to be running differently i am just worried to hook two brand new amps to something that could blow them up.

Any help would be greatly appreciated because the sooner i find this out then sooner i put my system in thanks

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[tuck05 10+ year member]

23 volts is bad. You sure you have it wired up correctly?

 

[team3d 10+ year member]

I'm lost on this one. Maybe your volt meter was on the wrong setting, just a suggestion cause as i said im lost on that one

 

[KyleBechtold 5,000+ posts]

thats doubtful or your car would be dead.. something isn't reading right.. all your fuses in your car woulda melted up..

 

[jcadams]

yeah that wat I thought would happen with all my fuses if I really wad running 23. It could be the meter I was using it was like digi with a turn dial for different settings. And I'm sure it is wired right positive to positive and then the ground is put about five inches away in chassis both batteries

 

[Compjake 10+ year member]

if its a true 23 volts my guess would be a bad voltage regulator.. and most automotive fuses are 25volt or 50 volt fuses fyi. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[norcrawler 10+ year member]

its like doubling your batterys voltage together or sum shit..haha

 

[bass-aholic 10+ year member]

Either your meter is messed up or some how you accidentaly wired the batts positive to negatuve which would give you 24v give or take.

 

[Compjake 10+ year member]

wait, did you actually go pos to pos and neg to neg or could you have them reversed? 2 12 volt batteries in series should be around 24 volts....

****it, you beat me to it lol

 

[bass-aholic 10+ year member]

wait, did you actually go pos to pos and neg to neg or could you have them reversed? 2 12 volt batteries in series should be around 24 volts....

****it, you beat me to it lol

i r ninjaa

 

[Compjake 10+ year member]

I can see that //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[jcadams]

yeah it goes positive of my front battery with 1/0 wire to the positive side of my second battery. the ground of the front battery is about 3 inches away with 1/0 to the strut tower. the ground of the second battery with 1/0 is wired through the bottom of the trunk with a bolt throughfrom and the ground

 

[I Like Waffle]

you have to have it wired in series..or either your meter is set wrong. Thats like the only cause i think. a bad regulator wouldnt affect the batteries resting voltage anyhow would it?

 

[allout13 10+ year member]

have you tried getting a reading from the battery in the front without the other one connected?

try that and if it still reads wrong then its probably the voltmeter

 

[DBBOOM 10+ year member]

series would yield ~24-24.5v. Your meter is screwed or maybe on the wrong range setting. IMO

But, for sure, verify the wiring before you do anything else.